在苏教版初中《物理》8年级下册中,摩擦力在初中教学中是重点和难点知识之一.同学们由于日常生活的经验不足,对摩擦力的概念模糊、理解不透,往往在做习题时出现这样或那样的疑问.现将对摩擦力的一些性质略作分析如下:1关于摩擦力产生的条件学好摩擦力,首先要知道它的产生条件,有些文章中指 In the junior middle school of the Sujiao version of “Physics” in the eighth grade, the friction in the junior high school teaching is one of the key and difficult knowledge of students due to lack of experience in daily life, the concept of friction fuzzy, not fully understood, often in One or more questions about the nature of friction will now be made as follows: 1. The conditions for the generation of friction To learn the friction, we must first know the conditions under which it occurs. In some articles, the middle finger